Person T is sprinting north toward Person Ju at X m/s down a hill with a Z degree angle. Person Je hides behind a window 8 feet west of Ju. When T is 10 feet from Ju, Je emerges from his spot and shoots at T. Assume paintballs can be shot at 200 f/s.

At what force does the paintball hit T’s neck?

I guess the picture would be the engineer’s answer to the question.